LM3881 - 电源序列发生器

LM3881是TI德州仪器公司的一款无产品，LM3881是电源序列发生器，本站介绍了LM3881的封装应用图解、特点和优点、功能等，并给出了与LM3881相关的TI元器件型号供参考。

LM3881 - 电源序列发生器 - 无 - 序列发生器 - 德州仪器

产品特性

Easiest Method to Sequence Rails
Power-Up and Power-Down Control
Tiny Footprint
Low Quiescent Current of 80 µA
Input Voltage Range of 2.7 V to 5.5 V
Output Invert Feature
Timing Controlled by Small Value External Capacitor

产品应用

Security Cameras
Servers
Networking Elements
FPGA Sequencing
Microprocessor and Microcontroller Sequencing
Multiple Supply Sequencing

产品说明

The LM3881 Simple Power Sequencer offers the easiest method to control power up and power down of multiple power supplies (switching or linear regulators). By staggering the start-up sequence, it is possible to avoid latch conditions or large inrush currents that can affect the reliability of the system.

Available in VSSOP-8 package, the Simple Sequencer contains a precision enable pin and three open-drain output flags. When the LM3881 is enabled, the three output flags will sequentially release, after individual time delays, thus permitting the connected power supplies to start up. The output flags will follow a reverse sequence during power down to avoid latch conditions. Time delays are defined using an external capacitor and the output flag states can be inverted by the user.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM3881	VSSOP (8)	3.00 mm x 3.00 mm

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